With interactive lessons tailored for all skill levels. Practice vocabulary, grammar, and pronunciation. Complete exercises and quizzes. Track progress and receive feedback. Access audio and video materials. Share achievements with friends.
Solve math, biology, physics, chemistry, nursing, economics, and history problems with AI-powered step-by-step guidance. Type or snap a photo of equations or questions for instant answers.
The app performs common first-year university statistics tests. It is designed for ease of use, making it suitable for introductory statistics students.
Convert units across 19 categories including acceleration, angle, area, cooking, data storage, density, and energy. Switch between 150+ currencies. Perform calculations for conversions and exchanges. Share results via copy or email.
Perform complex calculations with scientific, graphing, and programmer modes. View graphs and equations. Use the Today widget for quick access. Unlock advanced features with in- purchases. Reinstall to reset trial periods.
Explore of countries grouped by region. View with dates indicating their official use. Access for countries that had multiple designs during conflicts or divisions.
Allows developers to debug and test web content directly on iOS. View and edit HTML elements with live preview. Adjust and CSS rules in real time. Access JavaScript console for debugging. Check element dimensions and properties.
Scientific calculator allows complex equation solving, graphing in portrait and landscape modes, and polynomial root finding up to 10th degree. Adjust font sizes and graph line widths. Solve systems of equations and matrices.
Compute probabilities and quantiles for statistical distributions
Calculate probabilities and quantiles for standard distributions such as normal, t, chi-squared, F, binomial, Poisson, and others. Input parameters to compute values. Export results to files.
™ allows users to perform fraction calculations and convert between decimals and fractions. It supports degree, minute, and second conversions. Users can handle unit conversions and calculations with dimensional units.
Track calculations with a step-by-step history. Perform basic arithmetic operations. Save and review previous steps. Calculate totals for budgets or shopping lists. Edit or clear individual steps. Export results as text.
Combines a and -taking . Users can input calculations with numbers and operators. Rows support addition, subtraction, multiplication, division, or skipping. Rows can be reordered. Notes are organized into multi-depth folders.